Salvage the foundation with raft

Are these ground values correct, if true, there is no superficial foundation, you need to switch to a deep foundation system.
 
in the analysis, the floor 10 is about the same, but if the floor is usually 12 yk, the value in 1500 ground etud
 
If you take the soil tension as 12 and the bearing coefficient as 1500 and choose the reinforcement diameters as 24 and above, the basic calculations are saved.
 
However, since the soil class is Z4 in your project, you cannot increase the soil safety in earthquake loads, and in this case, your foundation does not save. As Sarıdurmuş friend said, you need to apply deep foundation.
 
I can't increase it by 50 percent, is it okay if I build a double basement, the problem is in idecat, although you increase the excavation depth a little, it forces the foundation even more
 
Nothing will happen unless you increase the ground safety. I think you should contact the company doing the survey, they usually determine the ground safety by dividing the value they find by 3. Yours is 12 given the value found accordingly is 36....
 
true, they take it as gs=3 but they give the same value as the copy-paste logic and gdyor the ground group c 50 atr, you know, when you load g+q, there is a bit of a problem
 
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